I need help on this one aswell if anyone wants to help me.
2 answers:
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Answer:
Step-by-step explanation:
Taking equation (1)
Multiplying both sides by 2
Adding 6y to both sides
Putting this in (2)
5(18+6y) + y = 28
5(18+6y) + y = 28
90 + 30y+y = 28
31y+90-28 = 0
31 y + 62 = 0
31y = -62
Dividing both sides by 31
y = -2
Now,
x = 18 + 6y
x = 18+6(-2)
x = 18-12
x = 6
The volume of a cone with base radius <em>r </em>and height <em>h</em> is
What happens when we scale by <em>k </em>?
Let <em>V'</em> be the volume of a cone with radius <em>rk</em> and height <em>hk</em>